Toyota RAV4 (XA40) 2013-2018 Service Manual: System description
- Engine immobiliser system description
The engine immobiliser system is designed to prevent the vehicle from being stolen. This system uses a transponder key ecu that stores the key codes of authorized ignition keys. If an attempt is made to start the engine using an unauthorized key, the ecu sends a signal to the ecm to prohibit fuel delivery and ignition, effectively disabling the engine.
- Function of main component
- System function
- When the transponder key ecu detects that the
unlock warning switch is on, the ecu provides
current to the transponder key coil and produces a
faint electric wave. A transponder chip in the key grip
receives the wave and outputs a key id code signal.
The transponder key coil receives this signal, the transponder key amplifier amplifies it, and then the signal is transmitted to the ecu. The ecu matches the key's id code with the vehicle's id code, which was previously registered in the ecu and then communicates the results to the ecm using sfi communication.
- After the identification results show that the key's id code matches the vehicle's id code and the ecu has confirmed their match: 1) the engine immobiliser system is canceled and the engine starting controls (fuel injection control and ignition control) enter standby mode; and 2) the ecu receives a security indicator light signal, and turns the security indicator light off.
Engine immobiliser system
Parts location
System diagram
...
How to proceed with troubleshooting
Hint:
Use these procedures to troubleshoot the engine immobiliser
system.
*: Use the intelligent tester.
Vehicle brought to workshop
Inspect battery voltage
Standard voltage:
11 t ...
Other materials:
Parking brake lever
Components
On-vehicle inspection
Check parking brake switch assembly
Remove the rear console box (see page ip-16).
Hint:
Refer to the procedures from the removal of the no.
1 Console upper panel garnish up until the removal
of the rear console box sub-assembly.
Discon ...
Wheels
If a wheel is bent, cracked or
heavily corroded, it should
be replaced. Otherwise, the
tire may separate from the
wheel or cause a loss of
handling control.
Wheel selection
When replacing wheels, care
should be taken to ensure that
they are equivalent to those
removed in load capacity, diameter,
rim ...
Trailer towing tips
Your vehicle will handle differently
when towing a trailer. Help
to avoid an accident, death or
serious injury, keep the following
in mind when towing:
Speed limits for towing a
trailer vary by state or province.
Do not exceed the
posted towing speed limit.
Toyota recommends that the
vehicle- ...
